Early-bird: How (not) to discharge a CRT!
Added 2019-05-31 01:01:20 +0000 UTCUpdate: Video explanation at 4:05 revised again with tweaks & spark energy explanation.
Dear Supporters,
Here's your early access! And don't try this at home. Try it on Patreon!
Video: https://youtu.be/a6FMpvs71pc
Thank you for your ongoing support.
Your friend in retro, Perifractic
Comments
Haha thanks! Did you see the edited video? I just use 250V as an analogy to simplify the comparison to a capacitor. Although I was told Mac CRTs store 700V ¯\_(ツ)_/¯
Perifractic's Retro Recipes
2019-05-31 19:54:11 +0000 UTCBTW, in case it comes up, CRT voltages are much higher than 250V; a rule of thumb is a CRT needs roughly 1000V (1 kV) per 1” of diagonal screen size to deflect the electron beam. So you’ll find perhaps 9 kV on a Mac’s 9” CRT. It’ll be different for short- versus long-neck CRTs, etc., but 1 kV/inch is usually a decent ballpark figure. (Or perhaps you’d call that a decent cricket ground figure?)
Robert Sundling
2019-05-31 19:51:58 +0000 UTCBjork doing a video on TV repair?.. I must have banged my head this morning :))
Paul Jacobson
2019-05-31 17:25:38 +0000 UTC
